Difference between revisions of "ESA Summer of Code in Space/Project Ideas"

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The list of possible projects below should serve as a good starting point for new developers that would like to get involved in working on BRL-CAD. The ideas below range from the very hard and math intense to the very easy, see the link to each for more details.  You are also welcome to scale the scope of the project up or down as needed as the ideas suggested below ''are merely starting points''.
+
If you want to work on '''computer-aided design (CAD), geometry, simulation, analysis, or graphics''', you've come to the right place!  Help us improve open source CAx.
  
{|align="right"
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{|align="center" width="62%"
  |[[Image:BRL-CAD_Priorities.png|thumb|left|256px|BRL-CAD Priorities]]
+
  |align="center" |[http://brlcad.org/w/index.php?title=Google_Summer_of_Code/Project_Ideas#BRL-CAD_Projects http://brlcad.org/images/logo/BRL-CAD_gear_logo_w_name_256.png]
 +
|colspan=2 align="center" |Under development for 30+ years, it's big, it's complicated, it's powerful.  BRL-CAD will consider just about any project that relates to computer graphics or existing infrastructure.
 
  |}
 
  |}
  
Be sure to read up on our [[Summer_of_Code/Application_Guidelines|application process]] for getting started with your proposal submission if you have not done so already including our [[Summer_of_Code/Checklist|checklist]]. See the diagram at the bottom of this page for an overview of our major project focus areas.
+
We consider proposals for all skill levels  ranging from simple to crazy hard and everything in between.  [https://lists.sourceforge.net/lists/listinfo/brlcad-devel Introduce yourself], and we'll help you plan one right for you.
  
= Project Categories =
+
Remember that project descriptions are just ''initial ideas''.  You must expand with [[Summer_of_Code/Application_Guidelines|considerably more detail]].  Change the goals to fit your experience and interests.  See our '''[[Summer_of_Code/Checklist|checklist]]''' to get started.
  
== High-priority Space Projects ==
+
'''Project titles link to a page with more details.'''
  
BRL-CAD has been used to visualize Hubble up in orbit (before it was launched), simulate light transport (multispectral analyses), model Earth's interior layers (education), and much more but there is lots of work that would really help make BRL-CAD more readily used for space work.  Given the mission of SOCIS, these are all naturally high-priority.
+
= BRL-CAD Projects =
  
{| border=1 bgcolor=#444444
+
== Web Development ==
!Idea
+
 
!Languages
+
{| bgcolor=#fff
!Impact
+
!
!Difficulty
+
!align=center|Languages
 +
!align=center|Difficulty
 +
!align=center|Contacts
 
|-
 
|-
|'''[[Astronomical units]]:'''  We already go "big", but accurately modeling at a galactic scale redefines that notion...
+
|width=62%|'''[[Benchmark Performance Database]]:'''  BRL-CAD's Benchmark has been used for two decades to compare performance  across configurations. Build a database website.  
|C
+
|Depends (likely PHP or Python)
|BIG
+
|align=center|EASY
|EASY
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 
|-
 
|-
|'''[[Bending light]]:'''  Think gravity wells and satellite cameras.
+
|width=62%|'''[[Synchronize Wiki with Docbook]]:'''  We use Docbook for most of our user documentation but find editing a wiki page much easier to use.  Set up a system so the two are always in sync.
|C
+
|Depends (likely PHP or Python)
|BIG
+
|align=center|MEDIUM
|MEDIUM
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Yapp]]
 
|-
 
|-
|'''[[Celestial mechanics particle system]]:'''  Simulate solar systems and galaxies.
+
|width=62%|'''[[Online Geometry Viewer Interface]]:'''  Continuation of existing work, improve our interface for viewing geometry online.  Focus on the front-end usability.
|C/C++
+
|Depends (likely PHP or Python)
|BIG
+
|align=center|MEDIUM
|MEDIUM
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 
|-
 
|-
|'''[[Non-vacuum gravity simulator]]:'''  Simulate falling to earth.
+
|width=62%|'''[[Online Geometry Viewer Back-end]]:'''  Continuation of existing work, improve our interface for viewing geometry online.  Focus on the back-end infrastructure.
|C/C++
+
|Depends (likely PHP or Python)
|BIG
+
|align=center|HARD
|MEDIUM
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 
|-
 
|-
|'''[[Polarization]]:'''  We already do multispectral ray tracing, but don't simulate polarization effectsImplement ray splitting and filtering.
+
|width=62%|'''[[Mediawiki 3D Geometry Extension]]:'''  Write an extension for Mediawiki that will visualize our .g filesMaybe leverage LLVM C->Javascript translation.  
|C
+
|Depends (likely PHP or Python)
|BIG
+
|align=center|HARD
|HARD
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 
|-
 
|-
|'''[[Density functions]]:'''  Accurately represent everything from atmosphere to bone.  Implement support for parametric density functions for homogenous materials.
+
|width=62%|'''[[Materials Database]]:'''  Create a Materials Database web site for collecting, managing, and providing programmatic interfaces to material properties.
|C
+
|Depends (likely PHP or Python)
|BIG
+
|align=center|MEDIUM
|HARD
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison, Yapp]]
|}  
+
|}
 
+
 
+
== Rendering & Analysis Projects ==
+
  
Raytracing is at the heart of all that is BRL-CAD.  The 'rt' application was the world's first distributed parallel ray tracer, implemented in early 80's, and it's backed by our powerful LIBRT library.  We're the best as full path shotlines (shooting all the way through geometry, not just first hit) and can handle crazy big geometry very efficiently, very fast.  It's how we perform geometric analysis, generate images, perform simulations, and more.
+
== Geometry ==
  
{| border=1 bgcolor=#444444
+
{| bgcolor=#fff width=100%
!Idea
+
!
!Languages
+
!align=center|Languages
!Impact
+
!align=center|Difficulty
!Difficulty
+
!align=center|Contacts
 
|-
 
|-
|'''[[Material and Shader Objects]]:'''  This one is a biggie but easyImplement new object entities for describing shaders and material properties, use them during ray tracing.
+
|align=left width=62%|'''[[NURBS Editing Support]]:'''  BRL-CAD doesn't currently have support for editing NURBS primitivesFix that.
|C
+
|align=center|C/Tcl
|HUGE
+
|align=center|MEDIUM
|EASY
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Yapp]]
 
|-
 
|-
|'''[[High Dynamic Range Support]]:''' We don't have displays supporting this yet, but that's never stopped us beforeImplement support for images with more than 8-bits per channel.
+
|width=62%|'''[[Overlap tool]]:''' Resolving geometric interferences (aka overlaps) is a common geometry editing activityDesign an awesome GUI for resolving conflicts.
|C and/or C++
+
|align=center|Tcl
|BIG
+
|align=center|EASY
|EASY
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Yapp, Morrison, Greenwald]]
 
|-
 
|-
|'''[[Vector output from raytracing]]:'''  Huge impact here if you can update one or more of our raytracers to provide vector output instead of raster.  Perhaps render directly to PDF or SVG.
+
|align=left width=62%|'''[[Vector Drawings from NURBS]]:'''  Huge impact here if you can update one or more of our raytracers to provide vector output instead of raster.  Perhaps render directly to PDF or SVG.
|C and/or C++
+
|align=center|C and/or C++
|HUGE
+
|align=center|EASY
|EASY
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Rossberg]]
 
|-
 
|-
|'''[[Analysis Library]]:'''  There are various tools in BRL-CAD for calculating weights, moments of inertia, and more.  They're stand-alone applicationsTurn them into a library.
+
|width=62%|'''[[NMG Editing]]:'''  Our structured polygonal mesh geometry (N-Manifold Geometry = NMG) is a common export format, but our NMG edit support is non-existentWe need something.
|C
+
|align=center|C
|HUGE
+
|align=center|HARD
|HARD
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison, Rossberg]]
|}
+
 
+
 
+
== Web Development Projects ==
+
 
+
We're generally less interested in web development projects because the developer rarely sticks around after development is over.  We're not interested in web code, we're interested in people.  If you're willing to work on your project long after this summer is over (i.e., joining the project) and are willing to make a long-term commitment to BRL-CAD, then we welcome your web development project idea.
+
 
+
{| border=1 bgcolor=#444444
+
!Idea
+
!Languages
+
!Impact
+
!Difficulty
+
 
|-
 
|-
|'''[[Materials Database]]:'''  Create a Materials Database web site for collecting, managing, and providing programmatic interfaces to material properties.
+
|width=62%|'''[[Visualizing Constructive Solid Geometry (CSG)]]:'''  CSG forms a directed acyclic graph.  Tree view widgets show a simple hierarchical representation, but we need something better.
|Depends
+
|align=center|C/C++
|BIG
+
|align=center|EASY
|MEDIUM
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 
|-
 
|-
|'''[[Benchmark Performance Database]]:'''  BRL-CAD's Benchmark has been used for two decades to compare performance  across configurations.  Build a database website.  
+
|align=left width=62%|'''[[Plate Mode NURBS raytracing]]:'''  Imported NURBS geometry often does NOT enclose space (i.e., not solid), so add support for specifying an implicit thickness.
|Depends
+
|align=center|C/C++
|BIG
+
|align=center|HARD
|MEDIUM
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
|}
+
 
+
 
+
== Geometry Conversion Projects ==
+
 
+
When it comes to geometry conversion, STEP and IGES are the priority.  STEP is an absurdly complicated format, but we're one of the first open source projects to implement a working importer.  IGES is a much older standard, but more time-tested too.  Both have a variety of potential high-priority projects associated with the.
+
 
+
{| border=1 bgcolor=#444444
+
!Idea
+
!Languages
+
!Impact
+
!Difficulty
+
 
|-
 
|-
|'''[[STEP Libraries]]:'''  We took over the NIST STEP Class Library (SCL) project during our development of our g-step exporter.  It needs a lot of cleanup.
+
|width=62%|'''[[STEP exporter]]:'''  We have an importer, we need a comprehensive exporter with support for implicit CSG, NURBS, or polygonal mesh geometry.
|C/C++
+
|align=center|C/C++
|HUGE
+
|align=center|EASY
|EASY
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Yapp, Morrison]]
 
|-
 
|-
|'''[[STEP exporter]]:'''  We have an importer, we need a comprehensive exporter with support for implicit CSG, NURBS, or polygonal mesh geometry.
+
|width=62%|'''[[STEP importer improvements]]:'''  We have an importer, but it's preliminary.  Add support for importing hierarchy information, polygonal geometry, and implicit geometry.
|C/C++
+
|align=center|C/C++
|HUGE
+
|align=center|MEDIUM
|EASY
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Yapp]]
 +
|-
 +
|width=62%|'''[[STEP AP 242 Parser]]:'''  We already parse a subset of AP203, but the new kid on the block is AP242.  Make AP242 work with BRL-CAD's step-g importer.
 +
|align=center|C++
 +
|align=center|HARD
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Mark, Charlie, Yapp]]
 
|-
 
|-
|'''[[STEP importer improvements]]:'''  We have an importer, but it's preliminary.  Add support for importing hierarchy information, polygonal geometry, and implicit geometry.
+
|width=62%|'''[[Convert BoT to Pipe]]:'''  Command line interface to convert facetted fluid/electrical line geometry into BRL-CAD native pipe solids.
|C/C++
+
|align=center|C/C++/Tcl
|HUGE
+
|align=center|MEDIUM
|MEDIUM
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 
|-
 
|-
|'''[[IGES import improvements]]:'''  We have extensive support for the International Geometry Exchange Standard (IGES) with our g-iges and iges-g converters, but they need updating.
+
|width=62%|'''[[IGES import improvements]]:'''  We have extensive support for the International Geometry Exchange Standard (IGES) with our g-iges and iges-g converters, but they need updating.
|C
+
|align=center|C
|HUGE
+
|align=center|MEDIUM
|MEDIUM
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 
|-
 
|-
|'''[[Geometry Conversion Library]]:'''  Probably our biggest open source asset is our extensive collection of importers and exporters.  Turn them all into a universal conversion library.  
+
|width=62%|'''[[Geometry Conversion Library]]:'''  Probably our biggest open source asset is our extensive collection of importers and exporters.  Turn them all into a universal conversion library.  
|C/C++
+
|align=center|C/C++
|HUGE
+
|align=center|EASY
|EASY
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald, Morrison, Rossberg]]
 
|-
 
|-
|'''[[Voxelize]] command:'''  Convert geometry into voxel data sets by shooting a grid of rays.  The finite element analysis and volumetric rendering folks will love you.
+
|width=62%|'''[[Voxelize]] command:'''  Convert geometry into voxel data sets by shooting a grid of rays.  The finite element analysis and volumetric rendering folks will love you.
|C
+
|align=center|C
|BIG
+
|align=center|EASY
|EASY
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald, Morrison, Rossberg]]
|}
+
 
+
 
+
== Geometry Processing Projects ==
+
 
+
As part of our new GUI development efforts, a lot of code had to be moved out of application space into a library.  That library is our geometry editing library, LIBGED.  A lot of time, attention, and emphasis is going on there to make sure that all of our core functionality is reusable by applications.  More than 100k lines of code have already moved, but there's still a lot more work needed.
+
 
+
{| border=1 bgcolor=#444444
+
!Idea
+
!Languages
+
!Impact
+
!Difficulty
+
 
|-
 
|-
|'''[[GED Transactions]]:''' Migrating functionality from our MGED geometry editor into our LIBGED library provided excellent code reuse, but now we need transactions so that actions can be undone.
+
|width=62%|'''[[COLLADA Importer]]:''' Create an importer for the COLLADA file format.
|C
+
|align=center|C/C++
|HUGE
+
|align=center|MEDIUM
|EASY
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 
|-
 
|-
|'''[[Geometric Constraint Solver]]:'''  Our LIBPC parametric constraint library is the work-in-progress foundation of being able to validate and describe geometry relationships.
+
|width=62%|'''[[X3D Importer]]:'''  Create an importer for the X3D file format.
|C/C++
+
|align=center|C/C++
|HUGE
+
|align=center|MEDIUM
|HARD
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 +
|-
 +
|width=62%|'''[[OpenSCAD Importer]]:'''  Create an importer for OpenSCAD's format.
 +
|align=center|C/C++
 +
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 +
|-
 +
|width=62%|'''[[OpenSCAD Exporter]]:'''  Create an exporter for OpenSCAD's format.
 +
|align=center|C/C++
 +
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 +
|-
 +
|width=62%|'''[[Python Geometry]]:'''  Wrap BRL-CAD's primitives in Python, make it easier to script geometry creation.
 +
|align=center|Python
 +
|align=center|Easy
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 +
|-
 +
|width=62%|'''[[Perl Geometry]]:'''  Wrap BRL-CAD's primitives in Perl, make it easier to script geometry creation.
 +
|align=center|Perl
 +
|align=center|Easy
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Browder]]
 
|}
 
|}
  
 +
== Performance & Quality ==
  
== NURBS (Non-Uniform Rational B-Splines) Projects==
+
{| bgcolor=#fff
 
+
!
BRL-CAD has recently implemented raytracing support for NURBS-based boundary representation geometry.  It's one of our '''''hot-topic priority focus areas''''' with ''high'' impact and ''high'' visibility.  They are also pretty hard so be careful to have sufficient familiarity and lots of milestones.
+
!align=center|Languages
 
+
!align=center|Difficulty
{| border=1 bgcolor=#444444
+
!align=center|Contacts
!Idea
+
!Languages
+
!Impact
+
!Difficulty
+
 
|-
 
|-
|'''[[NURBS Intersections]]:''' Evaluate the intersection of two NURBS surfaces.  You'll get a 3D curve or a point, line segment, or even a plane depending how the surfaces overlap.
+
|align=left width=62%|'''[[OpenCL GPGPU Raytracing]]:''' We have about two dozen primitives that need to have a ray-object intersection function converted from C to OpenCL.
|C/C++
+
|align=center|C/C++
|HUGE
+
|align=center|MEDIUM
|HARD
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison, Rossberg]]
 
|-
 
|-
|'''[[NURBS Tessellation]]:''' Given a NURBS object (i.e., a collection of NURBS surfaces that enclose space), evaluate a polygonal meshIt has to be fast.
+
|align=left width=62%|'''[[Coherent Raytracing]]:''' Our current raytrace pipeline dispatches and processes one ray at a timeSend bundles and convert the pipeline into phases.  
|C/C++
+
|align=center|C/C++
|HUGE
+
|align=center|MEDIUM
|MEDIUM
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison, Rossberg]]
 
|-
 
|-
|'''[[Implicit to NURBS conversion]]:'''  We implement lots of primitives like sphere and torus defined with implicit parameters.   Given one of our implicit primitives, describe it using NURBS surfaces.
+
|align=left width=62%|'''[[NURBS Booleans]]:'''  We have NURBS surface-surface intersections working. Now we're using them to create evaluated forms of our CSG geometry.  Make it more robust and faster.
|C/C++
+
|align=center|C/C++
|HUGE
+
|align=center|HARD
|MEDIUM
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Yapp, Rossberg]]
 
|-
 
|-
|'''[[Plate Mode NURBS raytracing]]:'''  Imported NURBS geometry often does NOT enclose space (i.e., not solid), so add support for specifying an implicit thickness.
+
|align=left width=62%|'''[[NURBS Optimization and Cleanup]]:'''  We have a fantastic implementation of NURBS evaluation but haven't gone back to clean up or speed it up.  Make it pretty and fast.
|C/C++
+
|align=center|C/C++
|HUGE
+
|align=center|MEDIUM
|HARD
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Yapp, Morrison]]
 +
|-
 +
|width=62%|'''[[Fix Bugs]]:'''  We take pride in our breadth of functionality and time-tested stability.  We still have bugs.  Identify some and fix them!
 +
|align=center|C
 +
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Browder]]
 +
|-
 +
|width=62%|'''[[NMG Raytracing Performance Improvement]]:'''  BRL-CAD's structured mesh geometry (N-Manifold Geometry = NMG) needs some time in a profiler. Malloc during raytracing is bad.
 +
|align=center|C
 +
|align=center|HARD
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison, Greenwald]]
 +
|-
 +
|width=62%|'''[[Mesh library cleanup]]:'''  BRL-CAD has an extensive n-manifold polygonal mesh library that needs some refactoring, testing, and optimization rework.
 +
|align=center|C
 +
|align=center|MEDIUM
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison, Rossberg]]
 +
|-
 +
|width=62%|'''[[Space Partitioning for Tessellation]]:'''  Technically an optimization task, make our geometry converters run an order of magnitude faster by using spatial partitioning during tessellation.
 +
|align=center|C
 +
|align=center|HARD
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald, Yapp, Morrison]]
 +
|-
 +
|width=62%|'''[[Code Reduction]]:'''  BRL-CAD is more than 1M lines of code.  Approximately 10% of that is duplication.  Help reduce that percentage.
 +
|align=center|C
 +
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald, Morrison]]
 +
|-
 +
|width=62%|'''[[Header Restructuring]]:'''  BRL-CAD has about two dozen libraries with a single header declaring the entire public API.  Break up those monster headers into modular sub-headers.
 +
|align=center|C
 +
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald, Morrison]]
 
|}
 
|}
  
 +
== Infrastructure ==
  
== Graphical User Interface (GUI) Projects ==
+
{| bgcolor=#fff
 
+
!
The primary environment in which users interact with BRL-CAD geometry is the MGED geometry editor.  The "next generation" interface for MGED, dubbed ''Archer'', has been under development for some time but there is a lot of  functionality that still needs to be migrated and new features needed by MGED, Archer, or both.
+
!align=center|Languages
 
+
!align=center|Difficulty
{| border=1 bgcolor=#444444
+
!align=center|Contacts
!Idea
+
!Languages
+
!Impact
+
!Difficulty
+
 
|-
 
|-
|'''[[New Cross-Platform 3D Display Manager]]:'''  BRL-CAD uses '''''display managers''''' for visualizing 3D geometry in a window.  We want one that uses a cross-platform toolkit such as Qt or OGRE.
+
|width=62%|'''[[New Cross-Platform 3D Display Manager]]:'''  BRL-CAD uses '''''display managers''''' for visualizing 3D geometry in a window.  We want one that uses a cross-platform toolkit such as Qt + OGRE.
|C/C++
+
|align=center|C/C++
|HUGE
+
|align=center|MEDIUM
|MEDIUM
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 
|-
 
|-
|'''[[New Cross-Platform 2D Framebuffer]]:'''  BRL-CAD uses '''''framebuffers''''' to display 2D imagery.  The merits of having a single interface for most platforms is self-evident.
+
|width=62%|'''[[New Cross-Platform 2D Framebuffer]]:'''  BRL-CAD uses '''''framebuffers''''' to display 2D imagery.  The merits of having a single interface for most platforms is self-evident.
|C/C++
+
|align=center|C/C++
|HUGE
+
|align=center|EASY
|EASY
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison, Yapp]]
 
|-
 
|-
|'''[[GUI Integration of Analysis Tools]]:'''  There are a ''lot'' of visualization tools in BRL-CAD, but most aren't integrated with the GUIVisualizing directly within the GUI would improve usability.
+
|width=62%|'''[[Advanced Sketch Primitive Editor]]:'''  BRL-CAD has a 2D sketch primitive, but our handling of editing sketches doesn't incorporate parametric constraintsThere are potentially applicable codes in the open source community we can leverage for this, or we can roll our own solution.
|C
+
|align=center|C/C++
|BIG
+
|align=center|MEDIUM
|MEDIUM
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Yapp]]
 
|-
 
|-
|'''[[Level of Detail Wireframes]]:''' Geometry is drawn with fixed wireframe detail which can screw performance and make shape recognition difficultDetail needs to adjust based on view size.
+
|width=62%|'''[[Geometric Constraint Solver]]:''' Our LIBPC parametric constraint library is the work-in-progress foundation of being able to validate and describe geometry relationships.
|C
+
|align=center|C/C++
|HUGE
+
|align=center|HARD
|EASY
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 +
|-
 +
|width=62%|'''[[MGED to Archer Command Migration]]:'''  Our next-generation editor (Archer) needs to have the same (700+) commands that are in MGED.  Help make our next CAD interface awesome.
 +
|align=center|C and Tcl
 +
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Yapp]]
 +
|-
 +
|width=62%|'''[[General Tree Walker]]:'''  We have a half dozen or more functions that will traverse a geometry hierarchy in different waysThere only needs to be one.
 +
|align=center|C
 +
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald, Yapp, Morrison]]
 +
|-
 +
|width=62%|'''[[Rework of libbu/libbn to not require Tcl]]:'''  Tcl's '''''C API''''' is used throughout BRL-CAD providing great abstractions, but we want our basic utility and numeric libraries (LIBBU & LIBBN) to stand alone.
 +
|align=center|C
 +
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison, Yapp, Greenwald]]
 +
|-
 +
|width=62%|'''[[Consolidate image processing]]:'''  We have 100+ image processing tools that independently read and write file data.  Needs much reuse love.
 +
|align=center|C
 +
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald]]
 +
|-
 +
|width=62%|'''[[GED Transactions]]:''' Migrating functionality from our MGED geometry editor into our LIBGED library provided excellent code reuse, but now we need transactions so that actions can be undone.
 +
|align=center|C
 +
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 +
|-
 +
|width=62%|'''[[Add exec option to search]]:'''  Our LIBGED library provides a ''search'' command very similar to the UNIX ''find'' command for scanning through geometry.  Implement the -exec option.
 +
|align=center|C
 +
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Yapp]]
 +
|-
 +
|width=62%|'''[[Geometry Selection Functionality]]:'''  Implement a new selection command that lets you temporarily group objects based on spatial, attribute, or geometric properties.
 +
|align=center|C
 +
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 +
|-
 +
|width=62%|'''[[Astronomical units]]:'''  We already go "big", but accurately modeling at a galactic scale redefines that notion...
 +
|align=center|C
 +
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison, Greenwald]]
 +
|-
 +
|width=62%|'''[[Object-oriented interfaces|Object-oriented C++ Geometry API]]:'''  Extend our C++ library which provides a simple interface to BRL-CAD's core functionality.  Kickstart start a new geometry kernel.
 +
|align=center|C++
 +
|align=center|MEDIUM
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Rossberg]]
 +
|-
 +
|width=62%|'''[[Point Clouds]]:'''  BRL-CAD has a basic point cloud primitive.  Beef it up, make it faster, maybe integrate with the Point Cloud Library (PCL) for evaluation.
 +
|align=center|C/C++
 +
|align=center|MEDIUM
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Browder]]
 +
|-
 +
|width=62%|'''[[Annotations]]:'''  Implement support for 2D annotations, labels that can be added to geometry.
 +
|align=center|Perl
 +
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Browder]]
 +
|-
 +
|width=62%|'''[[Python Bindings]]:'''  With or without SWIG, wrap BRL-CAD's command library API so you can issue our creation and editing commands from Python.
 +
|align=center|Python
 +
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 +
|-
 +
|width=62%|'''[[Perl Bindings]]:'''  With SWIG, wrap BRL-CAD's ray-tracing library API so you can issue calls to librt ray-tracing functions from Perl.
 +
|align=center|Perl
 +
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Browder]]
 
|}
 
|}
  
 +
== Rendering & Scientific Analysis ==
  
== Code Refactoring Projects ==
+
{| bgcolor=#fff
 
+
!
BRL-CAD has more than a million lines of code so we have to continually refactor and clean up code for maintainabilityCruft happensThese projects help reduce the complexity and make things better. They're not very hard at all, but exceedingly valuable to our project vitality.  
+
!align=center|Languages
 
+
!align=center|Difficulty
{| border=1 bgcolor=#444444
+
!align=center|Contacts
!Idea
+
|-
!Languages
+
|width=62%|'''[[Shader Enhancements]]:'''  We have a functioning custom shader system in BRL-CAD, but there are now folks that specialize and there's lot of room for improvements.
!Impact
+
|align=center|C
!Difficulty
+
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison, Greenwald]]
 +
|-
 +
|width=62%|'''[[Material and Shader Objects]]:'''  This one is a biggie but easy.  Implement new object entities for describing shaders and material properties, use them during ray tracing.
 +
|align=center|C
 +
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 +
|-
 +
|width=62%|'''[[GUI Integration of Analysis Tools]]:''' There are a ''lot'' of visualization tools in BRL-CAD, but most aren't integrated with the GUIVisualizing directly within the GUI would improve usability.
 +
|align=center|C
 +
|align=center|MEDIUM
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Rossberg]]
 +
|-
 +
|width=62%|'''[[Generalized abstracted spacial partitioning capability]]:''' Need more be said?  If you're familiar with BSPs, KD trees, and grid structures, then this one is for you.
 +
|align=center|C
 +
|align=center|HARD
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald, Morrison]]
 +
|-
 +
|width=62%|'''[[High Dynamic Range Support]]:'''  We don't have displays supporting this yet, but that's never stopped us before.  Implement support for images with more than 8-bits per channel.
 +
|align=center|C and/or C++
 +
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald, Yapp]]
 +
|-
 +
|width=62%|'''[[Analysis Library]]:'''  There are various tools in BRL-CAD for calculating weights, moments of inertia, and more.  They're stand-alone applications.  Turn them into a library.
 +
|align=center|C
 +
|align=center|HARD
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Yapp, Morrison]]
 +
|-
 +
|width=62%|'''[[Celestial mechanics particle system]]:'''  Simulate solar systems and galaxies.
 +
|align=center|C/C++
 +
|align=center|MEDIUM
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald]]
 +
|-
 +
|width=62%|'''[[Non-vacuum gravity simulator]]:'''  Simulate falling to earth.
 +
|align=center|C/C++
 +
|align=center|MEDIUM
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald, Morrison, Yapp]]
 +
|-
 +
|width=62%|'''[[Polarization]]:'''  We already do multispectral ray tracing, but don't simulate polarization effects.  Implement ray splitting and filtering.
 +
|align=center|C
 +
|align=center|HARD
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison, Rossberg]]
 
|-
 
|-
|'''[[Code Reduction]]:'''  BRL-CAD is more than 1M lines of codeApproximately 10% of that is duplication.  Help reduce that percentage.
+
|width=62%|'''[[Density functions]]:'''  Accurately represent everything from atmosphere to boneImplement support for parametric density functions for homogenous materials.
|C
+
|align=center|C
|BIG
+
|align=center|HARD
|EASY
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Rossberg, Morrison]]
 
|-
 
|-
|'''[[Consolidate image processing]]:'''  We have 100+ image processing tools that independently read and write file data.  Needs much reuse love.
+
|width=62%|'''[[Bending light]]:'''  Think gravity wells and satellite cameras.
|C
+
|align=center|C
|HUGE
+
|align=center|MEDIUM
|EASY
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 
|-
 
|-
|'''[[Fix Bugs]]:'''  We take pride in our breadth of functionality and time-tested stabilityWe still have bugs. Identify some and fix 'em!
+
|width=62%|'''[[Appleseed renderer integration]]:'''  Appleseed is rendering infrastructure used by the film industry to make pretty picturesMake it shoot rays at our native geometry with our ray trace library.
|C
+
|align=center|C
|DEPENDS
+
|align=center|MEDIUM
|EASY
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 
|}
 
|}
  
 +
== <An Idea of Your Own> ==
  
== <AN IDEA OF YOUR OWN> ==
+
Do you have an idea of your own? Maybe you need [http://brlcad.org/~sean/ideas.html more ideas] to inspire you? We're very open to areas of academic research, industry applications, and ideas that get you hooked on open source CAD development.
 
+
Do you have an idea of your own? [[Mailing Lists|Let us know]] and maybe we'll like it too. We're very open to new ideas, areas of academic research, industry applications, and any other ways that may help get you hooked on BRL-CAD development.  Just remember that BRL-CAD is a solid modeling CAD suite so keep that in mind when scoping your project.  
+
  
 
Requirements:
 
Requirements:
  
*Passion for the task being suggested
+
* Passion for the task being suggested
*Buy-in from one of the existing developers
+
  
  
Line 276: Line 394:
 
* Christopher Sean Morrison
 
* Christopher Sean Morrison
 
** brlcad on irc.freenode.net
 
** brlcad on irc.freenode.net
** Org admin, core dev, open source project lead
+
** Org admin, BRL-CAD open source project lead
  
 
* Erik Greenwald
 
* Erik Greenwald
 
** ``Erik on irc.freenode.net
 
** ``Erik on irc.freenode.net
** Org admin, core dev
+
** Org admin, BRL-CAD core dev
  
 
* Cliff Yapp
 
* Cliff Yapp
 
** starseeker on irc.freenode.net
 
** starseeker on irc.freenode.net
** Mentor, core dev
+
** BRL-CAD Mentor, core dev
  
 
* Daniel Rossberg
 
* Daniel Rossberg
 
** d_rossberg on irc.freenode.net
 
** d_rossberg on irc.freenode.net
** Mentor, core dev, math expert
+
** BRL-CAD Mentor, core dev, math expert
 
+
* Dave Loman
+
** dloman on irc.freenode.net
+
** Mentor, expert modeler
+
 
+
* Ed Davisson
+
** brlcad-devel mailing list
+
** Part-time mentor, Math guru extraordinaire
+
  
* Keith Bowman
+
* H.S. Rai
** brlcad-devel mailing list
+
** hsrai on irc.freenode.net
** Part-time mentor, core dev, NURBS guru
+
** BRL-CAD Mentor, math expert
  
 
* Tom Browder
 
* Tom Browder
** brlcad-devel maling list
+
** BRL-CAD Mentor, analysis expert
** Part-time mentor, analysis, code support
+
  
* Richard Weiss
+
* Bryan Bishop
** brlcad-devel mailing list
+
** BRL-CAD Mentor, python guru
** Part-time mentor, NMG info, code support
+

Revision as of 16:36, 3 April 2014

If you want to work on computer-aided design (CAD), geometry, simulation, analysis, or graphics, you've come to the right place! Help us improve open source CAx.

BRL-CAD_gear_logo_w_name_256.png Under development for 30+ years, it's big, it's complicated, it's powerful. BRL-CAD will consider just about any project that relates to computer graphics or existing infrastructure.

We consider proposals for all skill levels ranging from simple to crazy hard and everything in between. Introduce yourself, and we'll help you plan one right for you.

Remember that project descriptions are just initial ideas. You must expand with considerably more detail. Change the goals to fit your experience and interests. See our checklist to get started.

Project titles link to a page with more details.

BRL-CAD Projects

Web Development

Languages Difficulty Contacts
Benchmark Performance Database: BRL-CAD's Benchmark has been used for two decades to compare performance across configurations. Build a database website. Depends (likely PHP or Python) EASY Morrison
Synchronize Wiki with Docbook: We use Docbook for most of our user documentation but find editing a wiki page much easier to use. Set up a system so the two are always in sync. Depends (likely PHP or Python) MEDIUM Yapp
Online Geometry Viewer Interface: Continuation of existing work, improve our interface for viewing geometry online. Focus on the front-end usability. Depends (likely PHP or Python) MEDIUM Morrison
Online Geometry Viewer Back-end: Continuation of existing work, improve our interface for viewing geometry online. Focus on the back-end infrastructure. Depends (likely PHP or Python) HARD Morrison
Mediawiki 3D Geometry Extension: Write an extension for Mediawiki that will visualize our .g files. Maybe leverage LLVM C->Javascript translation. Depends (likely PHP or Python) HARD Morrison
Materials Database: Create a Materials Database web site for collecting, managing, and providing programmatic interfaces to material properties. Depends (likely PHP or Python) MEDIUM Morrison, Yapp

Geometry

Languages Difficulty Contacts
NURBS Editing Support: BRL-CAD doesn't currently have support for editing NURBS primitives. Fix that. C/Tcl MEDIUM Yapp
Overlap tool: Resolving geometric interferences (aka overlaps) is a common geometry editing activity. Design an awesome GUI for resolving conflicts. Tcl EASY Yapp, Morrison, Greenwald
Vector Drawings from NURBS: Huge impact here if you can update one or more of our raytracers to provide vector output instead of raster. Perhaps render directly to PDF or SVG. C and/or C++ EASY Rossberg
NMG Editing: Our structured polygonal mesh geometry (N-Manifold Geometry = NMG) is a common export format, but our NMG edit support is non-existent. We need something. C HARD Morrison, Rossberg
Visualizing Constructive Solid Geometry (CSG): CSG forms a directed acyclic graph. Tree view widgets show a simple hierarchical representation, but we need something better. C/C++ EASY Morrison
Plate Mode NURBS raytracing: Imported NURBS geometry often does NOT enclose space (i.e., not solid), so add support for specifying an implicit thickness. C/C++ HARD Morrison
STEP exporter: We have an importer, we need a comprehensive exporter with support for implicit CSG, NURBS, or polygonal mesh geometry. C/C++ EASY Yapp, Morrison
STEP importer improvements: We have an importer, but it's preliminary. Add support for importing hierarchy information, polygonal geometry, and implicit geometry. C/C++ MEDIUM Yapp
STEP AP 242 Parser: We already parse a subset of AP203, but the new kid on the block is AP242. Make AP242 work with BRL-CAD's step-g importer. C++ HARD Mark, Charlie, Yapp
Convert BoT to Pipe: Command line interface to convert facetted fluid/electrical line geometry into BRL-CAD native pipe solids. C/C++/Tcl MEDIUM Morrison
IGES import improvements: We have extensive support for the International Geometry Exchange Standard (IGES) with our g-iges and iges-g converters, but they need updating. C MEDIUM Morrison
Geometry Conversion Library: Probably our biggest open source asset is our extensive collection of importers and exporters. Turn them all into a universal conversion library. C/C++ EASY Greenwald, Morrison, Rossberg
Voxelize command: Convert geometry into voxel data sets by shooting a grid of rays. The finite element analysis and volumetric rendering folks will love you. C EASY Greenwald, Morrison, Rossberg
COLLADA Importer: Create an importer for the COLLADA file format. C/C++ MEDIUM Morrison
X3D Importer: Create an importer for the X3D file format. C/C++ MEDIUM Morrison
OpenSCAD Importer: Create an importer for OpenSCAD's format. C/C++ EASY Morrison
OpenSCAD Exporter: Create an exporter for OpenSCAD's format. C/C++ EASY Morrison
Python Geometry: Wrap BRL-CAD's primitives in Python, make it easier to script geometry creation. Python Easy Morrison
Perl Geometry: Wrap BRL-CAD's primitives in Perl, make it easier to script geometry creation. Perl Easy Browder

Performance & Quality

Languages Difficulty Contacts
OpenCL GPGPU Raytracing: We have about two dozen primitives that need to have a ray-object intersection function converted from C to OpenCL. C/C++ MEDIUM Morrison, Rossberg
Coherent Raytracing: Our current raytrace pipeline dispatches and processes one ray at a time. Send bundles and convert the pipeline into phases. C/C++ MEDIUM Morrison, Rossberg
NURBS Booleans: We have NURBS surface-surface intersections working. Now we're using them to create evaluated forms of our CSG geometry. Make it more robust and faster. C/C++ HARD Yapp, Rossberg
NURBS Optimization and Cleanup: We have a fantastic implementation of NURBS evaluation but haven't gone back to clean up or speed it up. Make it pretty and fast. C/C++ MEDIUM Yapp, Morrison
Fix Bugs: We take pride in our breadth of functionality and time-tested stability. We still have bugs. Identify some and fix them! C EASY Browder
NMG Raytracing Performance Improvement: BRL-CAD's structured mesh geometry (N-Manifold Geometry = NMG) needs some time in a profiler. Malloc during raytracing is bad. C HARD Morrison, Greenwald
Mesh library cleanup: BRL-CAD has an extensive n-manifold polygonal mesh library that needs some refactoring, testing, and optimization rework. C MEDIUM Morrison, Rossberg
Space Partitioning for Tessellation: Technically an optimization task, make our geometry converters run an order of magnitude faster by using spatial partitioning during tessellation. C HARD Greenwald, Yapp, Morrison
Code Reduction: BRL-CAD is more than 1M lines of code. Approximately 10% of that is duplication. Help reduce that percentage. C EASY Greenwald, Morrison
Header Restructuring: BRL-CAD has about two dozen libraries with a single header declaring the entire public API. Break up those monster headers into modular sub-headers. C EASY Greenwald, Morrison

Infrastructure

Languages Difficulty Contacts
New Cross-Platform 3D Display Manager: BRL-CAD uses display managers for visualizing 3D geometry in a window. We want one that uses a cross-platform toolkit such as Qt + OGRE. C/C++ MEDIUM Morrison
New Cross-Platform 2D Framebuffer: BRL-CAD uses framebuffers to display 2D imagery. The merits of having a single interface for most platforms is self-evident. C/C++ EASY Morrison, Yapp
Advanced Sketch Primitive Editor: BRL-CAD has a 2D sketch primitive, but our handling of editing sketches doesn't incorporate parametric constraints. There are potentially applicable codes in the open source community we can leverage for this, or we can roll our own solution. C/C++ MEDIUM Yapp
Geometric Constraint Solver: Our LIBPC parametric constraint library is the work-in-progress foundation of being able to validate and describe geometry relationships. C/C++ HARD Morrison
MGED to Archer Command Migration: Our next-generation editor (Archer) needs to have the same (700+) commands that are in MGED. Help make our next CAD interface awesome. C and Tcl EASY Yapp
General Tree Walker: We have a half dozen or more functions that will traverse a geometry hierarchy in different ways. There only needs to be one. C EASY Greenwald, Yapp, Morrison
Rework of libbu/libbn to not require Tcl: Tcl's C API is used throughout BRL-CAD providing great abstractions, but we want our basic utility and numeric libraries (LIBBU & LIBBN) to stand alone. C EASY Morrison, Yapp, Greenwald
Consolidate image processing: We have 100+ image processing tools that independently read and write file data. Needs much reuse love. C EASY Greenwald
GED Transactions: Migrating functionality from our MGED geometry editor into our LIBGED library provided excellent code reuse, but now we need transactions so that actions can be undone. C EASY Morrison
Add exec option to search: Our LIBGED library provides a search command very similar to the UNIX find command for scanning through geometry. Implement the -exec option. C EASY Yapp
Geometry Selection Functionality: Implement a new selection command that lets you temporarily group objects based on spatial, attribute, or geometric properties. C EASY Morrison
Astronomical units: We already go "big", but accurately modeling at a galactic scale redefines that notion... C EASY Morrison, Greenwald
Object-oriented C++ Geometry API: Extend our C++ library which provides a simple interface to BRL-CAD's core functionality. Kickstart start a new geometry kernel. C++ MEDIUM Rossberg
Point Clouds: BRL-CAD has a basic point cloud primitive. Beef it up, make it faster, maybe integrate with the Point Cloud Library (PCL) for evaluation. C/C++ MEDIUM Browder
Annotations: Implement support for 2D annotations, labels that can be added to geometry. Perl EASY Browder
Python Bindings: With or without SWIG, wrap BRL-CAD's command library API so you can issue our creation and editing commands from Python. Python EASY Morrison
Perl Bindings: With SWIG, wrap BRL-CAD's ray-tracing library API so you can issue calls to librt ray-tracing functions from Perl. Perl EASY Browder

Rendering & Scientific Analysis

Languages Difficulty Contacts
Shader Enhancements: We have a functioning custom shader system in BRL-CAD, but there are now folks that specialize and there's lot of room for improvements. C EASY Morrison, Greenwald
Material and Shader Objects: This one is a biggie but easy. Implement new object entities for describing shaders and material properties, use them during ray tracing. C EASY Morrison
GUI Integration of Analysis Tools: There are a lot of visualization tools in BRL-CAD, but most aren't integrated with the GUI. Visualizing directly within the GUI would improve usability. C MEDIUM Rossberg
Generalized abstracted spacial partitioning capability: Need more be said? If you're familiar with BSPs, KD trees, and grid structures, then this one is for you. C HARD Greenwald, Morrison
High Dynamic Range Support: We don't have displays supporting this yet, but that's never stopped us before. Implement support for images with more than 8-bits per channel. C and/or C++ EASY Greenwald, Yapp
Analysis Library: There are various tools in BRL-CAD for calculating weights, moments of inertia, and more. They're stand-alone applications. Turn them into a library. C HARD Yapp, Morrison
Celestial mechanics particle system: Simulate solar systems and galaxies. C/C++ MEDIUM Greenwald
Non-vacuum gravity simulator: Simulate falling to earth. C/C++ MEDIUM Greenwald, Morrison, Yapp
Polarization: We already do multispectral ray tracing, but don't simulate polarization effects. Implement ray splitting and filtering. C HARD Morrison, Rossberg
Density functions: Accurately represent everything from atmosphere to bone. Implement support for parametric density functions for homogenous materials. C HARD Rossberg, Morrison
Bending light: Think gravity wells and satellite cameras. C MEDIUM Morrison
Appleseed renderer integration: Appleseed is rendering infrastructure used by the film industry to make pretty pictures. Make it shoot rays at our native geometry with our ray trace library. C MEDIUM Morrison

<An Idea of Your Own>

Do you have an idea of your own? Maybe you need more ideas to inspire you? We're very open to areas of academic research, industry applications, and ideas that get you hooked on open source CAD development.

Requirements:

  • Passion for the task being suggested


Mentors

BRL-CAD operates under group mentorship. That means you can contact anyone, not just the person assigned to you, for assistance. The mailing list and IRC channel are the preferred communication methods.

  • Christopher Sean Morrison
    • brlcad on irc.freenode.net
    • Org admin, BRL-CAD open source project lead
  • Erik Greenwald
    • ``Erik on irc.freenode.net
    • Org admin, BRL-CAD core dev
  • Cliff Yapp
    • starseeker on irc.freenode.net
    • BRL-CAD Mentor, core dev
  • Daniel Rossberg
    • d_rossberg on irc.freenode.net
    • BRL-CAD Mentor, core dev, math expert
  • H.S. Rai
    • hsrai on irc.freenode.net
    • BRL-CAD Mentor, math expert
  • Tom Browder
    • BRL-CAD Mentor, analysis expert
  • Bryan Bishop
    • BRL-CAD Mentor, python guru